Add 36/15 and 5/81
1st number: 2 6/15, 2nd number: 5/81
36/15 + 5/81 is 997/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
36/15 = 36 × 27/15 × 27 = 972/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
5/81 = 5 × 5/81 × 5 = 25/405 - Add the two like fractions:
972/405 + 25/405 = 972 + 25/405 = 997/405 - So, 36/15 + 5/81 = 997/405
In mixed form: 2187/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15+5/81 36/15+10/81 36/30+5/81 36/15+15/81 36/45+5/81 36/15+25/81 36/75+5/81 36/15+35/81